#include "atomic_op_asm.h"

	.text
	.align	2

ENTRY(_atomic_sub_32)
	movl	4(%sp), %a0
	movl	8(%sp), %d0
	subl	%d0, (%a0)
	rts
END(_atomic_sub_32)
ATOMIC_OP_ALIAS(atomic_sub_32,_atomic_sub_32)
ATOMIC_OP_ALIAS(atomic_sub_int,_atomic_sub_32)
STRONG_ALIAS(_atomic_sub_int,_atomic_sub_32)
ATOMIC_OP_ALIAS(atomic_sub_long,_atomic_sub_32)
STRONG_ALIAS(_atomic_sub_long,_atomic_sub_32)
ATOMIC_OP_ALIAS(atomic_sub_ptr,_atomic_sub_32)
STRONG_ALIAS(_atomic_sub_ptr,_atomic_sub_32)

ENTRY(_atomic_sub_32_nv)
	movl	4(%sp), %a0
1:	movl	(%a0), %d0
	movl	%d0, %d1
	subl	8(%sp), %d0
	casl	%d1, %d0, (%a0)
	bne	1b
	movl	%d0, %a0	/* pointers return also in %a0 */
	rts
END(_atomic_sub_32_nv)

ATOMIC_OP_ALIAS(atomic_sub_32_nv,_atomic_sub_32_nv)
ATOMIC_OP_ALIAS(atomic_sub_int_nv,_atomic_sub_32_nv)
STRONG_ALIAS(_atomic_sub_int_nv,_atomic_sub_32_nv)
ATOMIC_OP_ALIAS(atomic_sub_long_nv,_atomic_sub_32_nv)
STRONG_ALIAS(_atomic_sub_long_nv,_atomic_sub_32_nv)
ATOMIC_OP_ALIAS(atomic_sub_ptr_nv,_atomic_sub_32_nv)
STRONG_ALIAS(_atomic_sub_ptr_nv,_atomic_sub_32_nv)
CRT_ALIAS(__sync_sub_and_fetch_4,_atomic_sub_32_nv)

ENTRY(__sync_fetch_and_sub_4)
	movl	4(%sp), %a0
1:	movl	(%a0), %d0
	movl	%d0, %d1
	subl	8(%sp), %d1
	casl	%d0, %d1, (%a0)
	bne	1b
	movl	%d0, %a0	/* pointers return also in %a0 */
	rts
END(__sync_fetch_and_sub_4)

ENTRY(_atomic_sub_16_nv)
	movl	4(%sp), %a0
1:	movw	(%a0), %d0
	movw	%d0, %d1
	subw	8(%sp), %d0
	casw	%d1, %d0, (%a0)
	bne	1b
	rts
END(_atomic_sub_16_nv)

CRT_ALIAS(__sync_sub_and_fetch_2,_atomic_sub_16_nv)

ENTRY(__sync_fetch_and_sub_2)
	movl	4(%sp), %a0
1:	movw	(%a0), %d0
	movw	%d0, %d1
	subw	8(%sp), %d1
	casw	%d0, %d1, (%a0)
	bne	1b
	rts
END(__sync_fetch_and_sub_2)

ENTRY(_atomic_sub_8_nv)
	movl	4(%sp), %a0
1:	movb	(%a0), %d0
	movb	%d0, %d1
	subb	8(%sp), %d0
	casb	%d1, %d0, (%a0)
	bne	1b
	rts
END(_atomic_sub_8_nv)

CRT_ALIAS(__sync_sub_and_fetch_1,_atomic_sub_8_nv)

ENTRY(__sync_fetch_and_sub_1)
	movl	4(%sp), %a0
1:	movb	(%a0), %d0
	movb	%d0, %d1
	subb	8(%sp), %d1
	casb	%d0, %d1, (%a0)
	bne	1b
	rts
END(__sync_fetch_and_sub_1)

CRT_ALIAS(__atomic_fetch_sub_1,__sync_fetch_and_sub_1)
CRT_ALIAS(__atomic_fetch_sub_2,__sync_fetch_and_sub_2)
CRT_ALIAS(__atomic_fetch_sub_4,__sync_fetch_and_sub_4)
